A 1kw electric heater is switched on for ten minutes. how much heat does it produce

History of spherical mirrors in human civilization?

A proton moving at 4.80 10⁶ m/s through a magnetic field of 1.52 T experiences a magnetic force of magnitude 7.95 10⁻¹³ N. What is the angle between the proton's velocity and the field?

A spelunker is surveying a cave. she follows a passage 170 m straight west, then 250 m in a direction 45â east of south, and then 280 m at 30â east of north. after a fourth unmeasured displacement, she finds herself back where she started.

What happens to beaches over time? A.) Beaches undergo little change-any sand the is eroded is added back by rivers that flow nearby. B.) Beaches undergo little change since any buildup of landforms will be broken apart by the waves. C.

When would the temperature and thermal energy of an object differ?

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

How Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane is 940 km/h

If vector A = 5.5N NE and vector B = 10m N 30° W, what is the vector product of A*B

Which is the best desciption of a molecule?